Ha,
J., R. Robinette, C. Kimpo, and G. Sackett. 1992. The climbing tube: a new
measure of motor control in infant pig‑tailed macaques. Annual meeting of the
American Society of Primatologists, June 19‑21, 1992.

Nicholson, T.M., J.S. Lockard, J.C. Ha, C.G. Walker-Gelatt, and M.F.S.X.
Novak. 1999. Initation and reciprocation as a function of group composition
in laboratory-reared infant Macaca nemestrina. Annual meeting of the American
Society of Primatologists, August 12-16, 1999.

Skypeck, V.K., L. Newell-Morris, and J.C. Ha. 2003. Epidemiology of high
birth weight in the pigtailed macaque (Macaca nemestrina). Annual
meeting of the American Society of Primatologists, July 31-Aug 3, 2003.

Bentson, K.L., C.M. Crockett, and J.C. Ha. 2003. A rapid home cage procedure
for assessing individual and group differences in behavioral reactivity of
monkeys. Annual meeting of the American Society of Primatologists, July
31-Aug 3, 2003.